Checksums and self-healing roadmap
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Quoted 7 lines · Tomasz Torcz
Hi,
I've read btrfs roadmap and skimmed through the code trying to learn
about self-healing in btrfs. Sadly I found none. If I understand correctly, upon detecting checksum error btrfs will only report it viaprintk()(incsum_tree_block()). Self-healing is most important feature of ZFS for me.
Correct, we currently only report errors without taking corrective actions.
Quoted 6 lines
As far as I understand, to have self healing in btrfs, first multiple devices spanning and configuration like raid1 must be implemented. Also multiples copies per subvolume (via btrfsctl I suppose) would be nice to have. Device spanning is in Roadmap. But what with other features? When they're planned?
Support for multiple devices exists today in the unstable trees, and it currently includes simple device concatenation and raid0. Raid1 is in progress, and should be done shortly. The plan is to stabilize all of this code over the month of April and release v0.14 with it at the end of the month.
-chris